SLR1.3 – Storage OCR GCSE SLR1.3 The need for secondary storage OCR GCSE SLR1.3 Data capacity and calculation of data capacity requirements OCR GCSE SLR1.3 Common Types of Storage OCR GCSE SLR1.3 Suitable storage devices and storage media for a given application Also in this topic... SLR1.5 – Network topologies – protocols and layers SLR2.1 – Algorithms SLR2.3 – Producing robust programs SLR2.4 – Computational logic SLR2.5 – Translators and facilities of languages